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. 2022 Feb 22;17:40. doi: 10.1186/s13014-022-02007-4

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — A CT and MRI procedures for ART. The fixed boost plan and adaptive boost plan are created on CTpre and CTmid, respectively. The dose distributions of PTVpost (PTV created by MRIpost) in the fixed boost plan and adaptive boost plan are compared by fusing MRIpost to CTpre and CTmid. B MRI with three timings (Pre, Mid, Post) and two boost plans. C Left: GTV-post (red) and PTVboost-post (magenta) on the CTpre (fixed boost plan). Right: GTV-post (red) and PTVboost-post (magenta) on the CTmid (adaptive boost plan). ART, adaptive radiation therapy; CT, compute tomography; GTV, gross target volume; MRI, magnetic resonance imaging; PTV, planning target volume